quiver vs palpitation

quiver and palpitation both are nouns.

Word	Noun	Adjective	Verb	Adverb
quiver	Yes	No	Yes	No
palpitation	Yes	No	No	No

As nouns, quiver and palpitation are synonyms defined as:

Other synonyms of quiver include quivering, shakiness, shaking, trembling, vibration.

quiver (noun)	palpitation (noun)
the act of vibrating	a rapid and irregular heart beat
case for holding arrows	a shaky motion
an almost pleasurable sensation of fright
a shaky motion

quiver (verb)	palpitation (verb)
shake with fast, tremulous movements
move with or as if with a regular alternating motion
move back and forth very rapidly